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Manuale per l’uso Texas Instruments TLC3578EVM

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Summary
  • Texas Instruments TLC3578EVM - page 1

    TLC3578EVM F amily August 2003 Data Acquisition− Digital/Analog Converters User ’ s G uide SLAU1 10 ...

  • Texas Instruments TLC3578EVM - page 2

    IMPORT ANT NOTICE T exas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, modifications, enhancements, improvements, and other changes to its products and services at any time and to discontinue any product or service without notice. Customers should obtain the latest relevant information before placing orde ...

  • Texas Instruments TLC3578EVM - page 3

    EVM IMPORT ANT NOTICE T exas Instruments (TI) provides the enclosed product(s) under the following conditions: This evaluation kit being sold by TI is intended for use for ENGINEERING DEVELOPMENT OR EV ALUA TION PURPOSES ONL Y and is not considered by TI to be fit for commercial use. As such, the goods being provided may not be complete in terms of ...

  • Texas Instruments TLC3578EVM - page 4

    EVM W ARNINGS AND RESTRICTIONS It is important to operate this EVM within the input voltage range of  15 V . Exceeding the specified input range may cause unexpected operation and/or irreversible damage to the EVM. If there are questions concerning the input range, please contact a TI field representative prior to connecting the input power . Ap ...

  • Texas Instruments TLC3578EVM - page 5

    How to Use This Manual v Preface Read This First About This Manual This user ’ s guide describes the characteristics, operation, and use of the following evaluation boards: - TLC3578 EVM Bipolar-Input, 8-channel 14-bit serial analog-to-digital converter - TLC3574 EVM Bipolar-Input, 4-channel 14-bit serial analog-to-digital converter - TLC3548 EVM ...

  • Texas Instruments TLC3578EVM - page 6

    T rademarks vi FCC Warning This equipment is intended for use in a laboratory test environment only . It generates, uses, and can radiate radio frequency energy and has not been tested for compliance with the limits of computing devices pursuant to subpart J of part 15 of FCC rules, which are designed to provide reasonable protection against radio ...

  • Texas Instruments TLC3578EVM - page 7

    Contents vii Contents 1 EVM Overview 1-1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.1 Features 1-2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Analog Interface 2-1 . . ...

  • Texas Instruments TLC3578EVM - page 8

    Contents viii Figures 2 − 1 Block Diagram 2-2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 − 1 EVM Selection 5-3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 − 2 DSK-T o-EVM ...

  • Texas Instruments TLC3578EVM - page 9

    1-1 EVM Overview EVM Overview Each evaluation board is based on the equivalent ADC. All ADCs use a synchronous serial interface which can be simply interfaced to many micro- controllers using the SPI protocol. Each EVM also incorporates a stable voltage reference, and operational amplifier to ensure a low-noise voltage reference for the ADC. T opic ...

  • Texas Instruments TLC3578EVM - page 10

    Features 1-2 1.1 Features - Evaluation board featuring one of the following: J TLC3578 ADC (order TLC3578 EVM) J TLC3574 ADC (order TLC3574 EVM) J TLC3548 ADC (order TLC3548 EVM) J TLC3544 ADC (order TLC3544 EVM) J TLC2578 ADC (order TLC2578 EVM) J TLC2574 ADC (order TLC2574 EVM) - Onboard reference, with recommended buffer circuitry - Suggested si ...

  • Texas Instruments TLC3578EVM - page 11

    2-1 Analog Interface Analog Interface T opic Page 2.1 Analog Interface Block Diagram 2-2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.2 Signal Conditioning 2-2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.3 Single Supply Operation 2-2 . . . . . . . . . . . . . . . . . . . . . . . . . . ...

  • Texas Instruments TLC3578EVM - page 12

    Analog Interface Block Diagram 2-2 2.1 Analog Interface Block Diagram A block diagram for the analog interface of the EVM is shown in Figure 2 − 1. Figure 2−1. Block Diagram TLC3578 TLC3574 TLC3548 TLC3544 TLC2578 TLC2574 Signal Conditioning P1 / J1 The channels are arranged to comply with the EVM standard developed for data converters. This st ...

  • Texas Instruments TLC3578EVM - page 13

    Physical Pinout Description 2-3 Analog Interface 2.4 Physical Pinout Description Samtec part numbers SSW-1 10-22-F-D-VS-K and TSM-1 10-01-T -DV -P provide a convenient 10-pin dual row header/socket combination at P1. This header/socket provides access to the analog input pins of the TL V2553/6. Consult Samtec at www .samtec.com or 1 − 800 − SAM ...

  • Texas Instruments TLC3578EVM - page 14

    Configuration Options 2-4 2.6 Configuration Options There are a number of options available via shorting jumpers. These are detailed below: T able 2 − 3. Jumper Settings Reference Designator Description Factory Set Condition Position Optional Position Designator 1−2 2−3 W1 Single supply operation Not installed W2 Select negative supply for op ...

  • Texas Instruments TLC3578EVM - page 15

    3-1 Digital Interface Digital Interface The digital interface for the EVM is simply the appropriate digital signals from the ADC routed and presented to the 20-pin digital interface connector . T opic Page 3.1 Physical Pinout Description 3-2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Chapter 3 ...

  • Texas Instruments TLC3578EVM - page 16

    Physical Pinout Description 3-2 3.1 Physical Pinout Description The EVM is designed for easy interfacing to multiple platforms. Samtec part numbers SSW-1 10-22-F-D-VS-K and TSM-1 10-01-T -DV -P provide a convenient 10-pin dual row header/socket combination. This header/socket combination provides access to the digital control and serial data pins o ...

  • Texas Instruments TLC3578EVM - page 17

    4-1 Power Supply Power Supply The EVM accepts four power supplies. - A dual ± Vs dc supply for the dual-supply op-amps. - A single 5.0 V dc supply for the analog section of the ADC. - A single 3.3 V to 5 V dc supply for the digital section of the ADC. There are two ways to provide these voltages. - Hook-up the test points on the EVM. The test poin ...

  • Texas Instruments TLC3578EVM - page 18

    4-2 ...

  • Texas Instruments TLC3578EVM - page 19

    5-1 Getting the Most From Y our EVM Getting the Most From Y our EVM A wide range of prototyping options and software solutions are available from TI , and of fer additional flexibility , reducing your time-to-market. Hardware and software offerings from TI help you easily get from concept to hardware and software prototype. T opic Page 5.1 Addition ...

  • Texas Instruments TLC3578EVM - page 20

    Additional Hardware Options 5-2 5.1 Additional Hardware Options In general there are three hardware directions that the user can take with the EVM. 5.1.1 Stand-Alone EVM The EVM can be used on its own. Using the EVM in this manner obliges the user to provide a custom digital interface between the EVM and a host system. Users are entirely responsibl ...

  • Texas Instruments TLC3578EVM - page 21

    Additional Hardware Options 5-3 Getting the Most From Y our EVM Figure 5 − 1. EVM Selection TMS320C671 1 DSK TMS320C3000 Interface Card TMS320C671 1 DSP TLC3578 EVM TLC3574 EVM TLC3544 EVM TLC3548 EVM TLC3578 EVM TLC3574 EVM TMS320C5K / 6K Interface Card 1. Select DSP 2. Select DSK 3. Select Interface Card. TMS320C2000 Interface Card Figure 5 − ...

  • Texas Instruments TLC3578EVM - page 22

    5-4 ...

  • Texas Instruments TLC3578EVM - page 23

    6-1 Bill of Materials, Board Layouts, and Schematic Bill of Materials, Board Layouts, and Schematic This chapter contains the EVM bill of materials, board layouts and schematics. T opic Page 6.1 Bill of Materials for EVM 6-2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6.2 Board Layouts 6-3 . . . . . . . . . . . . . ...

  • Texas Instruments TLC3578EVM - page 24

    Bill of Materials for EVM 6-2 6.1 Bill of Materials for EVM Item no. Qty V alue Ref Des Description V endor Part number 1 1 0R R19 Resistor , 0 − Ω 1/16 W 5% 0402 SMD Panasonic ERJ − 2GE0R00X 2 2 0R R8, R17 Resistor , 0 − Ω 1/8 W 5% 1206 SMD Panasonic ERJ − 8GEY0R00V 3 1 10R R15 Resistor 10 − Ω 1/8 W 5% 1206 SMD Panasonic ERJ − 8G ...

  • Texas Instruments TLC3578EVM - page 25

    Bill of Materials for EVM 6-3 Bill of Materials, Board Layouts, and Schematic 22 1 TLC3578 U4 IC, A/D 8 − CH, 14 − BIT , LP 24 − TSSOP T exas Instruments TLC3578IPW Alternate TLC3574 U4 IC, A/D, 4 − Ch, 14 − bit LP 20 − TSSOP T exas Instruments TLC3574IPW Alternate TLC3548 U4 IC, Unipolar A/D 8 − CH 24 − SOIC T exas Instruments TLC3 ...

  • Texas Instruments TLC3578EVM - page 26

    Board Layouts 6-4 6.2 Board Layouts Figure 6 − 1. T op Layer ...

  • Texas Instruments TLC3578EVM - page 27

    Board Layouts 6-5 Bill of Materials, Board Layouts, and Schematic Figure 6 − 2. Internal Plane 1 Figure 6 − 3. Internal Plane 2 ...

  • Texas Instruments TLC3578EVM - page 28

    Board Layouts 6-6 Figure 6 − 4. Bottom Layer (Mirrored) ...

  • Texas Instruments TLC3578EVM - page 29

    EVM Schematic 6-7 Bill of Materials, Board Layouts, and Schematic 6.3 EVM Schematic The EVM schematic is a PDF attachment following this page. ...

  • Texas Instruments TLC3578EVM - page 30

    1 2 3 4 5 6 A B C D 6 5 4 3 2 1 D C B A ti 12500 TI Boulevard. Dallas, Texas 75243 Title: SHEET: OF: FILE: SIZE: DATE: REV: 21-Aug-2003 Drawn By: Engineer: Revision History REV ECN Number Approved TLC3578 EVM Block Diagram DOCUMENTCONTROL # TLC3578 TLC3578.sch PWR & REF PWR & REF.sch CH6 CH7 AGND 1 3 5 7 9 11 13 17 19 2 4 6 8 10 12 14 16 18 ...

  • Texas Instruments TLC3578EVM - page 31

    1 2 3 4 5 6 A B C D 6 5 4 3 2 1 D C B A ti 12500 TI Boulevard. Dallas, Texas 75243 Title: SHEET: OF: FILE: SIZE: DATE: REV: 21-Aug-2003 Drawn By: Engineer: Revision History REV ECN Number Approved TLC3578.sch DOCUMENTCONTROL # AGND DVdd W5 R2 33R AGND R12 33R AGND R3 33R AGND R1 33R AGND R4 33R AGND R5 33R AGND R6 33R AGND R7 33R AGND W4 CH0 CH1 CH ...

  • Texas Instruments TLC3578EVM - page 32

    1 2 3 4 5 6 A B C D 6 5 4 3 2 1 D C B A ti 12500 TI Boulevard. Dallas, Texas 75243 Title: SHEET: OF: FILE: SIZE: DATE: REV: 21-Aug-2003 Drawn By: Engineer: Revision History REV ECN Number Approved PWR & REF.sch DOCUMENTCONTROL # W2 W3 C16 0.1uF + C19 10uF C1 0.1uF C13 0.1uF +VA -VA +5VA Amplifier +Supply Amplifier -Supply + C12 10uF + C2 10uF + ...

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